1394 search results - page 182 / 279 » Executing Nested Queries |
138
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ICDE
2010
IEEE
15 years 10 months ago
2010
IEEE
— We demonstrate ROX, a run-time optimizer of XQueries, that focuses on finding the best execution order of XPath steps and relational joins in an XQuery. The problem of join or...
163
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SOSP
2009
ACM
16 years 5 days ago
2009
ACM
Data-intensive applications are increasingly designed to execute on large computing clusters. Grouped aggregation is a core primitive of many distributed programming models, and i...
204
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SIGMOD
2005
ACM
16 years 3 months ago
2005
ACM
A windowed query operator breaks a data stream into possibly overlapping subsets of data and computes results over each. Many stream systems can evaluate window aggregate queries....
130
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SIGMOD
2010
ACM
15 years 8 months ago
2010
ACM
Time-oriented progress estimation for parallel queries is a challenging problem that has received only limited attention. In this paper, we present ParaTimer, a new type of timere...
175
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ADBIS
2009
Springer
15 years 8 months ago
2009
Springer
Scaling up web applications requires distribution of load across multiple application servers and across multiple database servers. Distributing load across multiple application se...